3 ms·
You need to set a memory target for your OSDs, or they will gobble up as much as possible for their cache. In Rook you do that by specifying the resource limits
by Nullabillity 7y ago
You need to set a memory target for your OSDs, or they will gobble up as much as possible for their cache. In Rook you do that by specifying the resource limits on your CephCluster[0].
Sadly, Rook enforces some pretty high minimum values (2GiB per OSD, 1 GiB per mon), which is fine for production but can make homelab experimentation annoying.
[0]: https://rook.io/docs/rook/v1.1/ceph-cluster-crd.html#cluster-wide-resources-configuration-settings https://rook.io/docs/rook/v1.1/ceph-cluster-crd.html#cluster...